For the record, I never, EVER use the console view. Nothing against it, it just doesn't give me everything I need and my workflow tends to need to see the project over time to make decisions.
I think SONAR's representation of sends is left over from the analog days, when these were finite. A console only has so many aux sends. With it being unlimited, I think SONAR...well heck every DAW I've ever used, still uses the old school console metaphor which limits us visually. I mean, heck we still use emulations of knobs. KNOBS! Where in the mouse-driven world does trying to emulate a circle make sense?
Anyhow, so yeah I don't think any DAW I've seen has figured out how to elegantly display all the limitless possibilities now on tap. The Pro-Channel's Quad Curve Flyout is a pretty good step in the right direction though.
And with modulation options only expanding more and more, I think the need to see more complicated signal flow is becoming apparent!